Driver of the crank-pin type



March .19, 1929. F. pusTAN ET AL I I DRIVE-R OF THE CRANK PIN TYPEDRIVER OF THE CRANK PIN TYPE Filed July 1927 2 Sheets-Shem 2 flank Jana;

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Patented Mandi), 1%29.

FRANK DUSTAN AND JOHN VIELGH, OF

BY ransnn ASSIGNI'JIELTTS, .a conr onarlon on DELAWARE. I

"airs" STATES OFFICE;

rimcnnuae, massncnnsnrrs, AssIeNoRs,

'rosnaw oni-anin-rnrnalyr MAG NE'J M ANY, me,

DRIVER on T E CEANK-ZPIQIIV warn.

Application filed. July 2,

' which the jaws for driving the wheel sets will operate on thecrankpins, which have finished surfaces to insure that the wl1eel: .setswill be held exactly. in thesan'ie position each time that they arehandled in the lathe so that the operator can establish locating pointsfor the movable counterweights on the. face plate to suit the varioussizes of the wheel sets handles; to provide a construction for thispurpose in which the aws are very quickly and eas'ilyoperated and fromeither the front or rear of the lathe and in which the-jaws are held insuch a way that they cannot become loosened by-the shocks of startingor. stop ping the'lnachine; and to provide for handling trailer sets onthis driving device by the aid of a supplementary pair of extension,jaws I attached to the regular jaws and engaging a Y spoke of the wheel,as these extension aWs are v attached to the regularjaws theyareadjustable in the same way as the crankpin jaws'and have the sameadvantages 7 Other objects and advantages of the invention will appearhereinafter. V o i I p Reference is to be had to the accompanyingdrawings in which 7 ,Fig. lis a front view ofa face plate for alocomotive journal turning quartering and pin turninglathe, showing apreferredemhodiinent of this invention. I c

2 is a diainetrical sectional view show-= ing the manner in which thecrankpin is grasped by the jaws;

F 3 is a transverse so line 33 of Fig. 4; v I. Fig. 4 is a view similarto Fig. 1- showing the addition of the extension jaws forfop'eratctionalview on the ing'on trailer sets, and

Fig; 5 is a ViBW si nilar are; 2 showin these extensionjaws in position.It will be understood by those skilled'in the art thatthe face plate 10.of a machine ofthev character described is provided wit-h;adju stfablecounterweights to balance. the 'forces set upinturning a heavy wheelset. This inven 1827. Serial No.1203,064.

tion is shown as applied to a face platea r? ranged forthe applicationof these counter Weights. The face plate is provided with an Iopening-12 located at a distance Irorn the'center. on opposite sides ofit are mount-ed brackets '13 having guides 14 which are arrangedcentrally in alignment with each other and'about centrally with respectto theopei1- ing 12. These guides carry slides 15 having dovetailedprojection-s; entering the guides' I On each of, these slides is a jaw16, these jaws beingadapted to engage a-crankpin 17 on a locoinotivewheel set projecting througlr'thc L opening 12 to the inner side of theface plate.

These jaws are faced with copperstrips to avoid iinjuring the finishedsurface 1 of {the crankpin 17.

V For the operation of each of thesejaws, the

brackets 13 are provided with bearings 18in which are rotatably mounteda pair ofshafts 19, each having a feedfscrew' 20thereon enter-, 7

' ing a nut'21 carried by the twoslidesl5. The

ends of these shafts are squaredoff at 22 to recfiive a Thandle socketwrench'for operating t em.

screws is provided with agear 23'1nes'hing witha gear 24- on a. studjournalled in the bracket 13; The'two gears 2e nesh withtwo gears 25fixed'to a shaft 26 arranged parallel Obviously the anes of the twoscrews20 with the twos crews and extending "across the p face plate;The.oppositegends'of this shaft,"

aremo-unted 1n hearings ofnithe brackets and have square ends 27 forreceiving the socket.

wrench as stated above. "The-two sets of gearing at'lthe ends of thisshaft are exactly alike so that turning of the shaft will result in theadjustment of the two toward each otheror away from each other exactlyin syncl'ironisnrand equal distances. 2

It will be seen that on account of the. square ends 22 and 27 the "awecan, be operated without any. dangerof getting them out of center. Onaccount of'th s feature, the wheel movable counterweightsfto "suit thevarious either frond the rear or the front ofthe lathe sizes of wheelsets handled, Also'itwill be- 5 observed that the adjustinentlorloosening and especially for lainding up the jaws on the cranlr pin 18made very quickly and easily as there is only one adjustment to make.This is an important improvement over machines of this kind-{in whichthe jaws clamp on a spoke in the Wheel center. Furthermore, on accountof the fact that jaws are held by the screws 20 they cannot becomeloosened on to the slides and o-en 'age a spoke in the wheel centerasshown in El stand "5. These extension jaws can be attached to :theface o fthe' regnlar ja sat Warionselistances fromthecenterotthelathe,to suit the variotrs sizes Ofilllilllfll' wheelcenters. 7 Although we have illustrated and clescrihed only one form ofthe invention and one attachment therefor, we are-aware of the fact thatmodifications can he made therein by any person skilled in theartwit'hout'departing from the scope of the invention as expressedintheclai ns. Therefore, we do not wish to be limited to all the detailsof construction herein shown and described, but what we do claiinis 1.In a wheel lathe, the combination of a face plate having an excentricopening, therethrough for the reception of the crank-pin, opposed jawsslidah'ly mounted on the face plate on either side of said opening,a-shaft mounted on the same side of the'tace plate as said jaws andparallel to the direction of movement of the same, screws forreciprocating the jaws, and gearing etween said screws and said shaft.

In whee-l lathe, :the .con'ibination of a lace plate having anexcentricopening there through for, the reception of the cranlcpin,opposed jaws carried by tlie'flace plate and slidah'le towards and awayfrom said opening, screws for reciprocating said jaws, a shaftmounted onthe 'face' plate "to one side ot said opening and parallel to saidscrews, gear ing between said shaft and said screws, and

extensions carried by said jaws and passing throughsaid opening.

In testimony whereof we have hereunto aflixed our signatures.

FRANK oems I J. is; 'wnnoei.

